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Finding the Fourth Proportional to 22,425.80, 33,640.30 and 6,843.40

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Solution

The fourth proportional to 22,425.80, 33,640.30 and 6,843.40 is: 10,265.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,425.80 : 33,640.30 = 6,843.40 : x
  2. Step 2: Convert to fraction form
    22,425.80/33,640.30 = 6,843.40/x
  3. Step 3: Cross multiply
    22,425.80x = 33,640.30 × 6,843.40
  4. Step 4: Simplify right side
    22,425.80x = 230,214,029.02
  5. Step 5: Solve for x
    x = 230,214,029.02/22,425.80
  6. Step 6: Final answer
    x = 10,265.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.